%0 Journal Article
%T Pathological femoral neck fracture caused by an echinococcus cyst of the vastus lateralis - case report
%A J¨˘nos Csotye
%A Kriszti¨˘n Sis¨˘k
%A Lor¨˘nt Bard¨®cz
%A K¨˘lm¨˘n T¨®th
%J BMC Infectious Diseases
%D 2011
%I BioMed Central
%R 10.1186/1471-2334-11-103
%X A 39 y.o. male presented to our orthopaedic outpatient clinic complaining of severe right hip pain, and inability to ambulate. Symptoms were not preceded by trauma. Subsequent imaging confirmed a large, 17 ˇÁ 3 ˇÁ 5 cm echinococcus cyst in the vastus lateralis, causing erosion of the proximal metaphysis of the femur. As a consequence the patient suffered a non-traumatic pathological intertrochanteric femur fracture. The patient was treated with an en-bloc excision of the lesion - the affected soft tissue envelope containing the large cyst - and as a second surgical step a cemented total hip replacement (THR) was implanted under the same anaesthetic.The manuscript reviews the literature regarding musculoskeletal hydatid disease.Among Echinococcus species, E. granulosus and E. multilocularis are commonly reported to be responsible for human hydatidosis. The endemicity of this parasitic infection may vary across countries. Echinococcus larvae develop in cystic form, mostly in the liver or the lungs. The involvement of other organs, and particularly the muscles, is relatively rare. Only 0.5 to 2% of hydatid cysts are skeletally localized [1].In this paper we report a rare case of a hydatid cyst located in the soft tissues of the right thigh and involving the proximal femur.A 39-year-old male was referred by his family physician to our out-patient clinic, complaining of right-sided thigh pain. He had recently moved to our region from Romania (a hyperendemeic area for echinococcosis) and worked as a shepherd.His previous history included a routine right sided inguinal hernia repair, because of persistent groin pain 9 years previously. As there was no symptomatic improvement after his hernia repair anterior-posterior and lateral radiographs of the affected hip were obtained, showing a cyst in the femoral neck. A few months after the hernia repair, the cyst was explored, curreted and the cavity was bone grafted using corticospongiosus autograft from the iliac crest. The histo
%K echinococcus
%K cyst
%K femur
%K fracture
%K prosthesis
%U http://www.biomedcentral.com/1471-2334/11/103